About the Number

12700980

12700979 ← → 12700981

2進数表記:110000011100110100110100

漢数字表記:千二百七十万九百八十

素因数分解:

2 2 × 3 2 × 5 1 × 41 1 × 1721 1

素因数の和:1777
約数の個数: 72
約数和(自身を含む): 39488904
約数和(自身を除く): 26787924

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1721, 1845, 2460, 3442, 3690, 5163, 6884, 7380, 8605, 10326, 15489, 17210, 20652, 25815, 30978, 34420, 51630, 61956, 70561, 77445, 103260, 141122, 154890, 211683, 282244, 309780, 352805, 423366, 635049, 705610, 846732, 1058415, 1270098, 1411220, 2116830, 2540196, 3175245, 4233660, 6350490, 12700980]

約数ペア:
[(1, 12700980), (2, 6350490), (3, 4233660), (4, 3175245), (5, 2540196), (6, 2116830), (9, 1411220), (10, 1270098), (12, 1058415), (15, 846732), (18, 705610), (20, 635049), (30, 423366), (36, 352805), (41, 309780), (45, 282244), (60, 211683), (82, 154890), (90, 141122), (123, 103260), (164, 77445), (180, 70561), (205, 61956), (246, 51630), (369, 34420), (410, 30978), (492, 25815), (615, 20652), (738, 17210), (820, 15489), (1230, 10326), (1476, 8605), (1721, 7380), (1845, 6884), (2460, 5163), (3442, 3690)]

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